Read a file from workspace as a newline separated list of tags to push to Datadog. Location is relative to workspace.
Example: os=${OS_PARAM}.
The value can either be something that is automatically expanded by Jenkins (environment and/or build variable), or a static value. The OS_PARAM in this case is expanded by Jenkins.
Note: Tags set this way, in the workspace, won't appear in started events. To provide visibility of a jobs lifespan, check the option for sending an extra event after each successful checkout.